头台油田微生物驱油室内评价研究  

Experimental Evaluation of MEOR in Daqing Toutai Oilfield

作　　者：廖广志[1] 侯兆伟[1] 石梅[1] 李蔚[1] 王明宏[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2003年第2期55-57,共3页Petroleum Geology & Oilfield Development in Daqing

摘　　要：介绍了大庆头台油田的地质构造、油层温度、矿化度及渗透率等概况。在油层温度为60～65℃的条件下筛选出P24等菌种,完成了室内细菌特性、乳化原油、代谢活性物质的能力及物理模拟驱油评价实验。结果表明,菌种SHB代谢出的活性物质使油水相间的界面张力由35 6mN/m降至12mN/m,降低了66 3%。经色谱分析发现,菌种X2作用后的原油C21以前的轻组分增加,正构烷烃参数ΣC21/ΣC22比值增加了97%,菌种A白作用后原油的粘度由作用前的48 9mPa·s降至27 3mPa·s,下降了44 2%。物理模拟驱油实验微生物驱比水驱提高采收率4 60%～6 08%,实验表明筛选的菌种能在油藏条件下生长,代谢出有利于驱油的物质。该实验结果为矿场试验提供了配方和依据。This paper introduces the geologic structure, reservoir temprature, salinity and permeability of Daqing Toutai Oilfield. It selects some kinds of microbe such as P24 in 60 65 ℃ of reservoir temprature. Experimental evaluation is performed to study the bacteria characteristic, emulsion oil, capability of metabolic active material and physical analogue experiment. The result shows that SHB metabolic active material decreases the oil water interfacial tension from 35 6 mN/m to 12 0 mN/m by 66 3%. Chromatographical analysis shows that the light component before C 21 after X2 action increases, the normal paraffin hydrocarbons parameter ∑C 21 /∑C 22 ratio increase by 97%, and the oil viscosity effected by microbe a decreases from 48 9 mPa·s to 27 3 mPa·s by 44 2%. Physical analogue experiment shows that microbial flooding increases recovery 4 60% 6 08% more than waterflooding. The selected microbe can grow in the reservoir condition and generate metabolic material for oil displacement. This result provides evidence for the pilot test.

关 键 词：菌种筛选 物理模拟 微生物驱油 头台油田 地质构造 油层温度 矿化度 室内评价 

分 类 号：TE357.9[石油与天然气工程—油气田开发工程]